Stud-and-socket fastener.



A. RAICHE. suo AND soc-KEI FASTNER.

APPLICATION FILED MAYS. l9l7.

1277,258. Patented Aug. 27, 1918.

Inv 971/307. andrewRa/che m: Non-ms Paws m., wamumo.. wAsmNcmn. n. c.

imrrnn srnrns ra'rniv'r orricn. v` f "ANDREW RAICHE, OF FAIRI-IAVEN, MASSACHUSETTS, ASSIGNOR :TO'ATLAS' 1TACK COM- PANY, OF FAIRHAVEN, MASSACHUSETTS, A CORPORATION OF NEW.J'EIRSIEFSZ'.`

STUD-AND-socxnr riscnniirziaj Y To all whom t may concern.'

-Be it known that I, ANDREW RAioHn, a citizen of the United States, residing at Fairhaven, inthe county of Bristol and State of Massachusetts, have invented new and useful Improvements is yStud-and- Socket Fasteners, of which the following is ya specification. y

The object of the present invention is toV yprovide an improved stud and socket fastener. Ycompanying drawings is embodied in a The invention as shown by the acstructure, most* of the parts of which are capable of being made of ductile sheet metal.

A fastener embodyingthe present inventionis particularly adapted for relativelyv Ihard usage such as fasteningv the flaps or invention inwhat VI now consider thepreferred form, the two principal elements be-y ing interlocked ywith each otherin coperative relation.'`

Fig. 2 is a view similarto Fig. lexcepti'ng that the two principal elements are disconnected, the. latch memberfbeing retracted from normal position.

fFig. f3y represents a section the plane f indicated by line 3-3 of Fig. '1.

yable latch member.

' Fig.` 4y is afperspective View of them/ov,-y

x Fig.' 5 is a perspective viewon a smaller` scale of the member in which the latch memstud member. 455

: rese ,and

plates or washers 'between which one ofthe l ber is arranged.

7 are ,perspectiveviews of la'psis `fastened. l t Y Fig. 8 represents a perspective view ofv a plate or' washer by' vwhich theV component j e. Fig. V9 represents aperspective view :of the Fig. 10 represents a perspective" view of Specification of Letters Patent.

ofthe stud are anchored to theother "member'. 'The plate is provided ,Patented Anger, 191s;

Application led May 3, 1917. "Serial No. $6,142.

the plate or washer lto whi'chnthe stud' member isaiixed. Y

Fig. 11 represents a perspective view ofy a spring for holding theV latch member nor-V t v60 'j The same reference characters indicate the mally in latching position."

same parts wherever they occur. f Referring first'to Figs. y1 and 2,ithe two are to be detachably' connected bythe stud and socket fastener are indicated respectively at 15 'and V16. The socket member, Vwhich, comprises a plurality of component parts, is permanently vattached to the element '15, and the studmember, which also comprises a plurality of component parts, is permanently attached to the element v16.

f VThesocket member comprises a .crown member 17 (Fig. 5) and two platesor washers 18 and 19 (Fig`s. 6 and7`). i In the present instance the crown member kis circular and hasv a cylindric annular flange portion 20 and tongues 21 formed integrally therewith. Thismember may bel made of ductile ysheet metal, and may be drawn to the rform shown. Any opening 22 is formed inthe cylindric wall 20 to receive the linger piece of the latch member hereinafter described.

The plates or washers 18 and 19 are` arranged against opposite faces of the element 15, to bind' and clamp the marginal portion thatV defines thevhole through which the stud member is to `be inserted? The flaps or other elements of sheet material that n plate 18 Vis provided with a central hole23 and'plate 19 isprovidedwith av central hole 124, both of which holesgarefofthefnecessary size to enable the Istud -i'ne'nf'iber!`to passv through them. Whenthe several elements of the socket memberare ready to be assembled the tongues 21 of the^crown member jareipassed through holesi25in plate;y 18,

through the stock ofthe element 15, through Yholes 26 in plate.19, 'an'd' then kbent over and however to passing the. tongues 21i through "the holes,v as just described, the vlatch member is arranged in the crownfkmembefr.

The latchV member isA shown `separatelyby "Fig 4.1'It'r'may befinadeof a plateV 27 of ductilelsheet metal, andisprovided'with a'y hole' V28, to receivey thefjstud' member. A finger piece or heady 29y isfolrm-ed at the outer edge of said plate, and -i`s of such shape and l size as jtofit the opening 22 inthe crown..

with an jclenched as shown by Figsjlv and 2.: l,Prior n t' iio iwi

ear 30 diametrically `opposite the finger piece 29, said ear being bent up substantially .at right angles to the plane of the .body of the plate. rEhe function of the ear 30 `is Vto engage a spring whereby the latch member is held` normally in, latching 'position Vas The latching portion 4of Ato rest. upon plate 18.- Portions 33, 33 extend at right angles to Aportion l32. and are adapted to bear .against thecylindric -wall Q0 ofthe crownmember. The end portions 34, 34 extend toward each other and toward the middle portionk 32, but they are normally displaced .from the general plane yof the spring so that their extremities only will engagethe ear 3() when the latching` device `is in latching position. The .angular shape of the spring'is'such that the latter will conform substantially to the space yprovided for p its reception, and will not'beconie dislodged from 'operative position. lhen the latch inember is displaced from .latching position theend portions 34 ofthe spring yield, and at the same time the intermediate portions 33-yield yby tersionalfaction tothe stress vof the .portions 34.v lThe aggregate distortion of the spring is .thus divided between the portions 34 and 33, the .former .undergoing flexure and thelatter undergoing :torsional distortion. n. p

The stud member is .shown separately by Fig.. 9. It may vbe madek from `a .piece of ductile. sheet metal, and is 4drawn to eprovfidea substantially cylindric Vbody portion "7, a .tapering .head 36, .and a reduced `neck 37. The .head and neck portions vare `de fined one from another by a shoulder 38, the latter being .adapted to. overlap and coact :with the latchiiig portion 31 to lockthe stud member in .the socket member. The .base end vof lthe studkmember is ,provided .with tongues V39 that .are radapted to yextend itliroughholes 40 formed ina `plate or washer 41. Before attaching fthe stud member fito plate 4l thevejectoris varrangedin the stud member. The ejector comprisessa plunger 42anda--helical compressionspring 43. The plunger4 is proa/ided y with a head 44jat vone fend, said head being arranged yin the vbody portion 35y ofthe stud member,-and .the

kshank portion lof the plunger being arranged A toprotrudeifrom the head 36 throughahole i 45 farmed inthe latter. fThe :reduced .neck

.memberz 37 is of a smaller diameter than the head 44 and such head and neck form stops to limit the movement of the plunger lunder the stress of the spring. .After the plunger and spring have been arranged in the stud member the tongues 39 VVof the latter may be inserted rthrough holes 40 of the plate 41 and then wedged or headed as indicated at 46, to provide a permanent fastening. The axial measurement of spring 43, when the latter is distended to .its .normal 1condition, `is

,greater than the distance between the head 44 and plate 4.1, and it is therefore necessary to compress kthe yspring yto some extent yin rorder to yattach the plate. The plunger 42 is thus 4normally held inthe lposition shown by Fig. '2 with the head 44v in Acontact with `on the outer edge of the plate 47 are adapted tobe passed through the element r16, and through holes 50 formed in plate 41. The stud member is permanently fastened to element 16 by bending over the ends of tongues 49 as shown by Figs. 1 and 2. Y

To use the device it is necessary merely to insert Ythe stud member into thejsocket member far enough to carry'the shoulder 38 kof thestud member `beyond the '.latching portion 31 of the latchmember. ',As Fthe head of the stud member .advances Aintothe socket member it .engages the latching ,por-

tion -to exert a wedgingactionionfthe latter to displace the latch member laterally.

against the stress of the latching spring.

V`In orderto yfacilitate .such lWedging Iaction ofthe stud imember I provide plate 18 with an ear 51, and arrange said ear diametrically opposite vthe .latching p ortion31. This ear provides a bearing surface .-forthehead ofthe stud member, :upon which surface the head may slide while displacing the latch The ear: 5:1 sustains the stress of therlatching spring, .and prevents the stud member from being skewed `erelativelyto the.

socket member. .It also Ainsures latching coaction of theshoulder 38 and the latching portion 31 by maintainingi'thestud.member vcentralized relatively to the socket member.

When, Vin the course of inserting the ;stud member, the shoulder 38 has passed beyond the latching portion 31, the latch member is permitteid'to return to its .normal position, as shown by Fig. 1, under the :stress of the latching spring.

The depth of the crown member 17 and the length of plunger` 42 are such that the leading endof the plunger abuts against the crown 17 before the stud member reaches latching position.` It is therefore necessary -represented by Fig. 2, thus carrying the latching portion 3l from under shoulder 38. The stud member is thus released, and immediately the spring 43 distends itself. Inasmuch as the plunger 42 is already against the crown 17 the effect of the spring is to separate the stud member and socket mem-Y ber, one from the other. The action of the spring 43 is sufficiently forcible to eject the stud member or the socket member, as. the

case may be, to a considerable distance. The operation of detaching theelements 15 and 16 is thus facilitated and made substantially instantaneous. y V

The base portion 27 of the latch member is provided with a notch 52 to receive the ear 51.V The confronting edges of said notch areadapted-to slide upon opposite edges of said ear when the latch member is moved. The ear is thus utilized to guide the latch member in a straight line, the guiding being assisted by the confronting edges of opening 22 conjointly with the finger piece 29. The latch member is thus prevented from being skewed in a way that would cause the linger piece to bend on the confronting edges of opening 22.

I'claim: n

l. .A stud-and-socket fastener comprising a sockety member having a crown and a signature.

latching device in the latter,Y and a stud member having a latching shoulder arranged to coact with said latching device, said-stud member having a central springplunger normally protruding from the leading, end of said stud member and arrangedA to be repressed by said crown,whereby said plunger is adapted to eject the stud member from the socket member when said latching device is moved to unlatch said mem-k bers. Y v

2. A stud-and-socket fastener comprising a socket member havingV a crown and a latching device, and a stud member arranged to be engaged by said latching device, said stud memberbeing hollow and having a lony gitudinal spring plunger therein which normally protrudes beyond the leading end of the stud member so as to be engaged and repressed by the crown when the stud `is yengaged by the latchingV device, said springv4 plunger and stud having stops for limiting the outward movement of the plunger.

8. A stud-and-socket fastener ycomprising a stud member having a latching shoulder, and a ysocket member having a-crown and having a latching vdevice arranged to coact with said latching shoulder, said crown having an opening in one side, said latching device having a finger-piece arranged to protrude through saidv opening for manipulation, said socket member having -an ear and said latching device having confronting portions arranged to slide on said ear, to

guide the movement of said latching de- Y vice, said ear being arranged to engage the studV member to guide the endwise movement ofthe latter and yto hold the stud member in potential latching position. l y

In testimony whereof I have afliXed m ANDREW RAICHE.

Copies of this patent mayk be obtained for five cents each byl addressing the Commissioner of Patents,

, Washington, D. C. 

